A blockchain system with multiple bank nodes, each containing an identity ledger and a digital currency ledger, and how it works

摘要

PROBLEM TO BE SOLVED: To provide a blockchain system including a plurality of bank nodes, each including an identity ledger and a digital currency ledger, and an operation method thereof. A blockchain system is disclosed. The blockchain system includes a plurality of bank nodes; and a plurality of mobile nodes; each of the plurality of bank nodes identifies the public key of each of the plurality of bank nodes and the identity of each user of the plurality of bank nodes. Includes a digital ID for, and an identity book containing a public key for each of the mobile nodes and a digital ID for identifying each of the mobile nodes. [Selection diagram] Fig. 2